Nagios is an industry-standard open-source IT infrastructure and network monitoring software which can monitor server resources (e.g., CPU, memory, disk usage), network equipments (e.g., switches or routers), application protocols and services. There exists a strong Nagios ecosystem consisting of numerous plugins, front-ends, add-ons which extend the capabilities of Nagios in terms of monitoring, alerting, hardware support, security, database/webserver integration, etc.
- How to install and configure Nagios on Linux
- How to monitor common services with Nagios
- How to configure Nagios for audio alerts and mobile notifications
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